Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Shtanov, Yu."'
Publikováno v:
Physical Review D 110, 024056 (2024)
We study spherically symmetric configurations of the quadratic $f(R)$ gravity in the Einstein frame. In case of a purely gravitational system, we have determined the global qualitative behavior of the metric and the scalaron field for all static solu
Externí odkaz:
http://arxiv.org/abs/2403.16741
Publikováno v:
Phys. Rev. B 110, L121402 (2024)
The observation of the Sagnac effect for massive material particles offers a significant enhancement in sensitivity when compared to optical interferometers with equal area and angular rotation velocity. For this reason, there have been suggestions t
Externí odkaz:
http://arxiv.org/abs/2309.10497
Autor:
Koshcheev, V. P., Shtanov, Yu. N.
In the first order of perturbation theory, the total energy of a diatomic molecule in the ground state is calculated taking into account the Pauli principle and plasma oscillations of atomic electrons. The Fourier component of the potential energy of
Externí odkaz:
http://arxiv.org/abs/2112.07372
Autor:
Koshcheev, V. P., Shtanov, Yu. N.
An equation for the evolution of the energy of a dynamical system (Keldysh model with one degree of freedom), which contains a white noise source, is constructed. It is shown that self-oscillations (flutter) are suppressed if the intensity of white n
Externí odkaz:
http://arxiv.org/abs/2111.02819
Autor:
Shtanov, Yu. V., Pavliuk, M. V.
Publikováno v:
Ukr. J. Phys. 64, No. 11, pp. 1009-1013 (2019)
We describe a simple scenario of inflationary magnetogenesis based on a helical coupling to electromagnetism. It allows to generate helical magnetic fields of strength of order up to $10^{- 7}\,\text{G}$, when extrapolated to the current epoch, in a
Externí odkaz:
http://arxiv.org/abs/1911.10424
Akademický článek
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The book elucidates the current state of the dark energy problem and presents the results of the authors, who work in this area. It describes the observational evidence for the existence of dark energy, the methods and results of constraining of its
Externí odkaz:
http://arxiv.org/abs/1502.04177
Autor:
Koshcheev, V. P., Shtanov, Yu. N.
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics; Apr2024, Vol. 88 Issue 4, p441-446, 6p
Autor:
Koshcheev, V. P., Shtanov, Yu. N.
Publikováno v:
Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; Apr2024, Vol. 18 Issue 2, p474-477, 4p
Autor:
Shtanov, Yu. V.
Publikováno v:
Phys.Lett.B543:121-126,2002
We construct solutions in purely gravitational bulk with flat vacuum branes without fine tuning the constants of the theory. Our solutions incorporate one or two branes and have topology S^1 x R^4 without Z_2 symmetry. They are not invariant under th
Externí odkaz:
http://arxiv.org/abs/hep-ph/0108211